Amazon Web Services (AWS)
*******************************
With the Cloud, businesses no longer need to plan for and procure servers and other IT infrastructure weeks or months in advance. Instead, they can instantly spin up hundreds or thousands of servers in minutes and deliver results faster.
Amazon Elastic Compute Cloud (Amazon EC2)
*******************************
With the Cloud, businesses no longer need to plan for and procure servers and other IT infrastructure weeks or months in advance. Instead, they can instantly spin up hundreds or thousands of servers in minutes and deliver results faster.
Amazon Elastic Compute Cloud (Amazon EC2)
************************************************
Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale computing easier for developers.
Amazon EC2 enables “compute” in the cloud. Amazon EC2’s simple web service interface allows you to obtain and configure capacity with minimal friction.
Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change. Amazon EC2 changes the economics of computing by allowing you to pay only for capacity that you actually use.
Amazon EC2 presents a true virtual computing environment, allowing you to use web service interfaces to launch instances with
a variety of operating systems,load them with your custom application environment, manage your network's access permissions, and run your image using as many or few systems as you desire.
* Select a pre-configured, templated image to get up and running immediately.
Or create an Amazon Machine Image (AMI) containing your applications,
Or create an Amazon Machine Image (AMI) containing your applications,
libraries, data, and associated configuration settings.
* Configure security and network access on your Amazon EC2 instance.
* Choose which instance type(s) and operating system you want, then start,
terminate, and monitor as many instances of your AMI as needed, using the
web service APIs or the variety of management tools provided.
* Determine whether you want to run in multiple locations, utilize static IP
endpoints, or attach persistent block storage to your instances.
* Pay only for the resources that you actually consume, like instance-hours or
data transfer.
Elasticity : Amazon EC2 enables you to increase or decrease capacity
within minutes, not hours or days. You can commission one, hundreds or even thousands of server instances simultaneously. Of course, because this is all controlled with web service APIs, your application can automatically scale itself up and down depending on its needs.
Completely Controlled : You have complete control of your instances. You have root access to each one, and you can interact with them as you would any machine.
You can stop your instance while retaining the data on your boot partition and then subsequently restart the same instance using web service APIs.
Instances can be rebooted remotely using web service APIs. You also have access to console output of your instances.
Flexible : You have the choice of multiple instance types, operating systems, and software packages.
Amazon EC2 allows you to select a configuration of memory, CPU, instance storage, and the boot partition size that is optimal for your choice of operating system and application.
Amazon Simple Storage Service (Amazon S3)
***********************************************
Amazon Simple Storage Service (Amazon S3) enables storage in the cloud.
Amazon S3 is storage for the Internet. It is designed to make web-scale computing easier for developers.
Amazon S3 provides a simple web services interface that can be used to store and retrieve any amount of data, at any time, from anywhere on the web. It gives any developer access to the same highly scalable, reliable, fast, inexpensive data storage infrastructure that Amazon uses to run its own global network of web sites. The service aims to maximize benefits of scale and to pass those benefits on to developers.
Write, read, and delete objects containing from 1 byte to 5 terabytes of data each. The number of objects you can store is unlimited.
Data stored in Amazon S3 is secure by default; only bucket and object owners have access to the Amazon S3 resources they create.
Amazon Simple Queue Service (Amazon SQS)
************************************************
Amazon Simple Queue Service (Amazon SQS) offers a reliable, highly scalable hosted queue for storing messages as they travel between computers. By using Amazon SQS, developers can simply move data between distributed application components performing different tasks, without losing messages or requiring each component to be always available.
Amazon SQS works by exposing Amazon’s web-scale messaging infrastructure as a web service. Any computer on the Internet can add or read messages without any installed software or special firewall configurations.
Alexa Web Information Service (AWIS)
****************************************
The Alexa Web Information Service makes Alexa’s vast repository of information about the traffic and structure of the web available to developers.
SSH info
**********
To connect to your Linux/UNIX instance from a Windows machine, use an SSH
client. The following instructions explain how to use PuTTY, a free SSH client
for Windows machines. Some of the Prerequisites are :-
* Enable SSH traffic Open the instance's SSH port before you try to connect, ensure that your Amazon EC2 instance accepts incoming SSH traffic (usually on port 22). For more information, see Authorize Network Access to Your Instances.
* Instance ID Get the ID of your Amazon EC2 instance retrieve the Instance ID of the Amazon EC2 instance you want to access. The Instance ID for all your instances are available in the AWS Management Console or through the CLI command ec2-describe-instances.
* Instance's public DNS Get the public DNS of your Amazon EC2 instance retrieve the public DNS of the Amazon EC2 instance you want to access. You can find the public DNS for your instance using the AWS Management Console or by calling the CLI command ec2-describe-instances. The format of an instance's public DNS is ec2-w-x-y-z-compute-1.amazonaws.com where w, x, y, and z each represents a number between 0 and 255 inclusive.
* Private key Get the path to your private key you'll need the fully qualified path of the private key file associated with your instance. For more information on key pairs, see Getting an SSH Key Pair.
Amazon Machine Image (AMI)
*******************************
An Amazon Machine Image (AMI) is a special type of virtual machine image which is used to instantiate (create) a virtual machine within the Amazon Elastic Compute Cloud. It serves as the basic unit of deployment for services delivered using EC2.
Amazon Relational Database Service (Amazon RDS)
******************************************************
******************************************************
Amazon RDS makes it easy to set up, operate, and scale a relational database in the cloud.
It provides cost-efficient and resizable database capacity while managing time-consuming database administration tasks.
Use the AWS Management Console or Amazon RDS APIs to launch a Database Instance (DB Instance), selecting the DB Engine (MySQL or Oracle),
License Type, DB Instance class and storage capacity that best meets your needs.
Connect to your DB Instance using your favorite database tool or programming language.
Since you have direct access to a familiar MySQL or Oracle database, most tools designed for these engines should work unmodified with Amazon RDS.
Different Amazon Instances
*****************************
* On-Demand DB Instances : On-Demand DB Instances let you pay for compute
capacity by the hour with no long-term commitments.
This frees you from the costs and complexities of planning, purchasing, and maintaining hardware and transforms what are commonly large fixed costs
into much smaller variable costs. On-Demand Instances also remove the need to buy safety net capacity to handle periodic traffic spikes.
into much smaller variable costs. On-Demand Instances also remove the need to buy safety net capacity to handle periodic traffic spikes.
* Reserved DB Instances : Reserved DB Instances give you the option to make a
low, one-time payment for each DB Instance you want to reserve and in turn
receive a significant discount on the hourly usage charge for that Instance.
There are three Reserved Instance types (Light, Medium, and Heavy Utilization Reserved Instances) that enable you to balance the amount
you pay upfront with your effective hourly price.
* Spot Instances : Spot Instances allow customers to bid on unused Amazon EC2 capacity and run those instances for as long as their bid exceeds the current Spot Price.
The Spot Price changes periodically based on supply and demand, and customers whose bids meet or exceed it gain access to the available Spot Instances.
If you have flexibility in when your applications can run, Spot Instances can significantly lower your Amazon EC2 costs.
* Standard Instances
* Micro Instances : Micro instances (t1.micro) provide a small amount of
consistent CPU resources and allow you to increase CPU capacity in short
bursts when additional cycles are available.
* High-Memory Instances :- Instances of this family offer large memory sizes for
high throughput applications, including database and memory caching
applications.
* High-CPU Instances :- Instances of this family have proportionally more CPU
resources than memory (RAM) and are well suited for compute-intensive
applications.
* Cluster Compute Instances :- Instances of this family provide proportionally
high CPU resources with increased network performance and are well suited
for High Performance Compute (HPC) applications and other demanding
network-bound applications.
* Cluster GPU Instances :- Instances of this family provide general-purpose
graphics processing units (GPUs) with proportionally high CPU and increased
network performance for applications benefitting from highly parallelized
processing, including HPC, rendering and media processing applications.
Amazon Virtual Private Cloud (Amazon VPC)
***********************************************
Amazon VPC is a secure and seamless bridge between a company's existing IT infrastructure and the AWS cloud.
Amazon VPC enables enterprises to connect their existing infrastructure to a set of isolated AWS compute resources
via a Virtual Private Network (VPN) connection, and to extend their existing management capabilities such as security services, firewalls,
and intrusion detection systems to include their AWS resources.
Amazon Elastic Block Store (EBS)
************************************
Amazon Elastic Block Store (EBS) offers persistent storage for Amazon EC2 instances.
Amazon EBS volumes provide off-instance storage that persists independently from the life of an instance.
Amazon EBS volumes are highly available, highly reliable volumes that can be leveraged as an Amazon EC2 instance's boot partition or attached to a running Amazon EC2 instance as a standard block device. When used as a boot partition, Amazon EC2 instances can be stopped and subsequently restarted, enabling you to only pay for the storage resources used while maintaining your instance's state.
Amazon EBS volumes offer greatly improved durability over local Amazon EC2 instance stores, as Amazon EBS volumes are automatically replicated on the backend (in a single Availability Zone). For those wanting even more durability, Amazon EBS provides the ability to create point-in-time consistent snapshots of your volumes that are then stored in Amazon S3, and automatically replicated across multiple Availability Zones. These snapshots can be used as the starting point for new Amazon EBS volumes, and can protect your data for long term durability.
You can also easily share these snapshots with co-workers and other AWS developers.
Instant Elasticity
******************
you can instantly deploy new applications, instantly scale up as your workload grows, and instantly scale down based on demand.
Security
*********
Amazon EC2 includes web service interfaces to configure firewall settings that control network access to and between groups of instances.
When launching Amazon EC2 resources within Amazon Virtual Private Cloud (Amazon VPC),
you can isolate your compute instances by specifying the IP range you wish to use, and connect to your existing IT infrastructure using
industry-standard encrypted IPsec VPN. You can also choose to launch Dedicated Instances into your VPC. Dedicated Instances are Amazon EC2 Instances that run on hardware dedicated to a single customer for additional isolation.
industry-standard encrypted IPsec VPN. You can also choose to launch Dedicated Instances into your VPC. Dedicated Instances are Amazon EC2 Instances that run on hardware dedicated to a single customer for additional isolation.
Multiple Locations
********************
Amazon EC2 provides the ability to place instances in multiple locations. Amazon EC2 locations are composed of Regions and Availability Zones.
Availability Zones are distinct locations that are engineered to be insulated from failures in other Availability Zones and provide inexpensive, low latency network connectivity to other Availability Zones in the same Region. By launching instances in separate Availability Zones, you can protect your applications from failure of a single location. Regions consist of one or more Availability Zones, are geographically dispersed, and will be in separate geographic areas or countries.
Elastic IP Addresses
**********************
Elastic IP addresses are static IP addresses designed for dynamic cloud computing.
An Elastic IP address is associated with your account not a particular instance, and you control that address until you choose to explicitly release it. Unlike traditional static IP addresses, however, Elastic IP addresses allow you to
mask instance or Availability Zone failures by programmatically remapping your public IP addresses to any instance in your account. Rather than waiting on a data technician to reconfigure or replace your host, or waiting for DNS to propagate to all of your customers, Amazon EC2 enables you to engineer around problems with your instance or software by quickly remapping your Elastic IP address to a replacement instance.
Amazon CloudWatch
**********************
Amazon CloudWatch is a web service that provides monitoring for AWS cloud resources and applications, starting with Amazon EC2.
It provides you with visibility into resource utilization, operational performance, and overall demand patterns including metrics such as CPU utilization, disk reads and writes, and network traffic. You can get statistics, view graphs, and set alarms for your metric data.
To use Amazon CloudWatch, simply select the Amazon EC2 instances that youd like to monitor.
Auto Scaling
**************
Auto Scaling allows you to automatically scale your Amazon EC2 capacity up or down according to conditions you define. With Auto Scaling, you can ensure that the number of Amazon EC2 instances you are using scales up seamlessly during demand spikes to maintain performance, and scales down automatically during demand lulls to minimize costs.
Auto Scaling is particularly well suited for applications that experience hourly, daily, or weekly variability in usage. Auto Scaling is enabled by Amazon CloudWatch and available at no additional charge beyond Amazon CloudWatch fees.
Elastic Load Balancing
************************
Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances.
It enables you to achieve even greater fault tolerance in your applications, seamlessly providing the amount of load balancing capacity
needed in response to incoming application traffic. Elastic Load Balancing detects unhealthy instances within a pool and automatically reroutes traffic
to healthy instances until the unhealthy instances have been restored. You can enable Elastic Load Balancing within a single Availability Zone
or across multiple zones for even more consistent application performance.
High Performance Computing (HPC) Clusters
***********************************************
Customers with complex computational workloads such as tightly coupled parallel processes, or with applications sensitive to network performance, can achieve the same high compute and network performance provided by custom-built infrastructure while benefiting from the elasticity,
flexibility and cost advantages of Amazon EC2.
VM Import
************
VM Import enables you to easily import virtual machine images from your existing environment to Amazon EC2 instances. VM Import allows you to leverage your existing investments in the virtual machines that you have built to meet your IT security, configuration management, and compliance requirements by seamlessly bringing those virtual machines into Amazon EC2 as ready-to-use instances. This offering is available at no additional charge beyond standard usage charges for Amazon EC2 and Amazon S3.
No comments:
Post a Comment